Theoretical analysis of a multiresonant zero-current switching buck converter applied to low wind power PMSG

This paper presents a three-phase multiresonant zero-current switching buck converter for application in wind energy low power conversion systems. The converter is found to be suitable to operate with variable wind speed over a wide range. It works as a high power factor rectifier in systems based on permanent magnet synchronous generators, presenting a simple implementation and control. It arises as an interesting alternative to be used in distributed generation and hybrid systems where wind generation is associated with other sources. The operation of the converter, design equations and simulation results of the conversion system in MATLAB/SIMULINK ® platform are presented.